Reliability of the KT1000 arthrometer and the Lachman test in patients with an ACL rupture

S.H. Wiertsema, H.J.A. van Hooff, L.A.A. Migchelsen and M.P.M. Steultjens 

The purpose of this study was to examine the reliability of the KT1000 arthrometer and the Lachman test.  Twenty patients with a complete tear of the anterior cruciate ligament (ACL) were examined in a single session each. During the assessment, two physical therapists measured the anterior–posterior translation of the knee using both the KT1000 arthrometer and the Lachman test. The results showed that the KT1000 arthrometer has inadequate reliabilities and the Lachman test is a reliable measurement to determine the anterior–posterior laxity of the ACL deficit knee with good intra-rater reliability as well as inter-rater reliability.

This article provides evidence for the use of the Lachman test as a clinical test in identifying ACL ruptures

The Knee, 2008, 15(2), 107-110

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